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  2. Air ioniser - Wikipedia

    en.wikipedia.org/wiki/Air_ioniser

    An air ioniser (or negative ion generator or Chizhevsky's chandelier) is a device that uses high voltage to ionise (electrically charge) air molecules. Negative ions, or anions , are particles with one or more extra electrons , conferring a net negative charge to the particle.

  3. Air purifier - Wikipedia

    en.wikipedia.org/wiki/Air_purifier

    Unlike ionizers, ozone generators are intended to produce significant amounts of ozone, a strong oxidant gas which can oxidize many other chemicals. The only safe use of ozone generators is in unoccupied rooms, utilising "shock treatment" commercial ozone generators that produce over 3000 mg of ozone per hour.

  4. Ozone - Wikipedia

    en.wikipedia.org/wiki/Ozone

    Ozone generators sold as air cleaners intentionally produce the gas ozone. [43] These are often marketed to control indoor air pollution , and use misleading terms to describe ozone. Some examples are describing it as "energized oxygen" or "pure air", suggesting that ozone is a healthy or "better" kind of oxygen. [ 43 ]

  5. The best air purifiers of 2025 - AOL

    www.aol.com/lifestyle/best-air-purifiers...

    The tallest (14.4" wide x 14.4" deep x 22.7" tall) in our round-up and with a premium grey material that covers much of the cylindrical-shaped device, this air purifier can clean up to 3,048 ...

  6. Electrostatic precipitator - Wikipedia

    en.wikipedia.org/wiki/Electrostatic_precipitator

    A negative voltage of several thousand volts is applied between wire and plate. If the applied voltage is high enough, an electric corona discharge ionizes the air around the electrodes, which then ionizes the particles in the air stream. The ionized particles, due to the electrostatic force, are diverted towards the grounded plates. Particles ...

  7. Carbon dioxide cleaning - Wikipedia

    en.wikipedia.org/wiki/Carbon_dioxide_cleaning

    Dry-ice blasting used to clean bakery equipment. In pellet cleaning ("dry-ice blasting"), relatively large pellets of solid CO 2 are fired at the surface to be cleaned. These pellets impinge on the surface, mechanically dislodging contaminant particles. Pellet cleaning is only appropriate for surfaces sturdy enough to withstand significant impacts.

  8. Ozone monitor - Wikipedia

    en.wikipedia.org/wiki/Ozone_monitor

    An ozone monitor of this type operates by pulling an air sample from the atmosphere into the machine with an air pump. [3] During one cycle, the ozone monitor will take one air sample through the air inlet, and scrub the ozone from the air; for the next cycle, an air sample bypasses the scrubber and the ozone value calculated. The solenoid ...

  9. High-ozone shock treatment - Wikipedia

    en.wikipedia.org/wiki/High-ozone_shock_treatment

    High ozone shock treatment involves using an ozone generator with a timer to create lethal levels of ozone in an enclosed odour ridden or mold-affected room or building for a short period of time, between one and several hours. For safety reasons, the affected area must be evacuated of people, animals and live plants for the duration of the ...

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